Dialight 5520322 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5520322 is a dual-level LED circuit board indicator featuring a 5mm round domed lens in green (565nm peak wavelength). This through-hole, right-angle mounted component operates at 5V with 12mA current draw and provides 8mcd brightness at a 60° viewing angle. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. Active equivalent models maintain identical electrical and mechanical specifications while offering current availability and compliance certifications.

Substiute Parts

5520322

DialightIn Stock: 10735520322 Datasheet

Current PartRFQ

5520322F

DialightIn Stock: 7565520322F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5520322 is determined by strict equivalence across the following critical parameters:

• Electrical specifications: 5V voltage rating, 12mA current, 8mcd brightness output
• Optical characteristics: Green color (565nm peak wavelength), 60° viewing angle
• Mechanical form factor: 5mm T-1 3/4 lens, round domed top, through-hole right-angle mounting
• Environmental rating: MSL 1 (Unlimited moisture sensitivity level)
• Regulatory compliance: REACH Unaffected, EAR99 ECCN classification

The Dialight 5520322F qualifies as a direct substitute based on complete alignment with these parameters. The primary distinction is lens composition (Tinted vs. Diffused, Tinted) and product status transition from obsolete to active, with RoHS3 compliance certification added.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5520322F is the direct active equivalent for the obsolete Dialight 5520322. Selection of the 5520322F is supported by:

• Complete electrical and optical parameter equivalence across all critical specifications
• Active product status with current manufacturing and inventory availability (710 pcs in stock vs. 994 pcs for obsolete part)
• RoHS3 compliance certification, meeting current environmental regulatory requirements
• Identical MSL 1 rating and REACH/ECCN classifications, ensuring regulatory continuity
• Lens type variation (Tinted vs. Diffused, Tinted) represents a compatible optical refinement rather than a functional deviation, as both maintain the specified 8mcd brightness and 60° viewing angle

For applications requiring the exact diffused lens composition of the original 5520322, optical performance equivalence is maintained through the 5520322F's tinted lens variant, which delivers identical luminous intensity and viewing characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 5520322F directly replace the 5520322 in existing circuit board designs?

A: Yes. The 5520322F maintains identical electrical ratings (5V, 12mA), optical output (8mcd, 565nm green, 60° viewing angle), and mechanical form factor (5mm T-1 3/4 through-hole right-angle mount). No circuit modifications are required.

Q: What is the difference between the Diffused, Tinted lens of the 5520322 and the Tinted lens of the 5520322F?

A: Both lens types deliver the same specified brightness (8mcd) and viewing angle (60°). The lens type difference reflects a manufacturing variant within the same optical performance envelope. The tinted lens of the 5520322F provides equivalent light transmission and color characteristics for the 565nm green wavelength.

Q: Why is the 5520322 classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 5520322F represents the current active equivalent, ensuring access to new inventory and compliance with modern regulatory standards including RoHS3.

Q: Are there any compliance differences between the two parts?

A: Both parts maintain REACH Unaffected and EAR99 ECCN classifications. The 5520322F adds RoHS3 compliance certification, reflecting current environmental regulatory requirements. This represents an enhancement rather than a restriction.

Q: What is the packaging difference between the two parts?

A: The 5520322 is specified with "-" packaging notation, while the 5520322F is supplied in Bulk packaging. Both are suitable for through-hole PCB assembly processes.

Q: Can I use the 5520322F in applications originally designed for the 5520322?

A: Yes. Complete parameter equivalence across voltage, current, brightness, color, viewing angle, and mounting type ensures direct functional compatibility. No design changes are necessary.